Home / 158,071.23-218,159.36-89,174.70

Finding the Fourth Proportional to 158,071.23, 218,159.36 and 89,174.70

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Solution

The fourth proportional to 158,071.23, 218,159.36 and 89,174.70 is: 123,072.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,071.23 : 218,159.36 = 89,174.70 : x
  2. Step 2: Convert to fraction form
    158,071.23/218,159.36 = 89,174.70/x
  3. Step 3: Cross multiply
    158,071.23x = 218,159.36 × 89,174.70
  4. Step 4: Simplify right side
    158,071.23x = 19,454,295,703.13
  5. Step 5: Solve for x
    x = 19,454,295,703.13/158,071.23
  6. Step 6: Final answer
    x = 123,072.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.